Investigating the impact of public libraries on social development

The current research is cross-sectional in terms of its practical purpose, the nature of the current research is a descriptive correlation type that has been carried out quantitatively, according to the theoretical foundations for measuring social justice, the obtained components and sub-criteria for each of the criteria. A 5-point Likert scale was developed. In order to measure social justice from librarians' point of view, a questionnaire was designed with three dimensions: appearance, content and literary dimensions. The items of this variable were also designed based on a 5-point Likert scale. The validity of the questionnaire was measured through content and form validity and its reliability was also measured with Cronbach's alpha of 83%. The analysis of research findings has been done using SPSS version 23 statistical software, and Pearson's correlation coefficient and multiple regression and path analysis tests were also used to test the hypotheses. The statistical population of the research is the total number of public libraries across the country, which are divided into five parts: north, south, west, east and center, based on the population in the north 1334 people, south 1276 people, east 1565 people, west 1095 and There are 1,981 centers with a total of 7,251 people, and since we are dealing with a large statistical population, 479 people were selected as cluster sampling using Morgan's table. In this research, the final questionnaire was provided to 30 librarians, which was obtained as described in the table and shows the appropriate reliability of the tool.